Incident Score: Analysis & Impact (LUM1779135941)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Lumexa Imaging's Breach and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts Lumexa Imaging Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the Lumexa Imaging breach identified under incident ID LUM1779135941.
The analysis begins with a detailed overview of Lumexa Imaging's information like the linkedin page: https://www.linkedin.com/company/lumexa-imaging, the number of followers: 25019, the industry type: Hospitals and Health Care and the number of employees: 563 employees
After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 765 and after the incident was 702 with a difference of -63 which is could be a good indicator of the severity and impact of the incident.
In the next step of the video, we will analyze in more details the incident and the impact it had on Lumexa Imaging and their customers.
On 09 April 2026, Lumexa Imaging disclosed Data Breach issues under the banner "Lumexa Imaging Data Breach via Third-Party Vendor".
Lumexa Imaging, a major U.S.
The disruption is felt across the environment, affecting Third-party vendor’s network segment dedicated to Lumexa’s operations, and exposing Sensitive patient data including names, dates of birth, addresses, phone numbers, Social Security numbers, patient account numbers, insurance details, visit dates, diagnoses, and other radiology-related health information.
In response, and stakeholders are being briefed through Notification letters mailed to impacted individuals, dedicated call center established.
The case underscores how Ongoing, with advisories going out to stakeholders covering Free identity monitoring services offered through Kroll; enrollment deadline and membership number provided in notification letters. Dedicated call center established (844-959-7072).
Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.
The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.
MITRE ATT&CK® Correlation Analysis
Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Supply Chain Compromise (T1195) with high confidence (90%), supported by evidence indicating data breach stemming from unauthorized access to a third-party vendor’s network and Compromise Software Supply Chain (T1195.002) with moderate to high confidence (80%), supported by evidence indicating unauthorized access to a third-party vendor’s network segment dedicated to Lumexa’s operations. Under the Credential Access tactic, the analysis identified Steal Application Access Token (T1528) with moderate confidence (60%), supported by evidence indicating unauthorized individual accessed and exfiltrated documents (implied credential misuse). Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating documents containing patient information...viewed or copied (PHI/PII) and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating sensitive patient data held by Lumexa’s affiliated radiology practices. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating unauthorized individual accessed and exfiltrated documents and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating data exfiltration occurred (no specific method disclosed). Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating no details on whether data was altered or deleted and Stored Data Manipulation (T1565.001) with lower confidence (40%), supported by evidence indicating intruder may have viewed or copied records (potential tampering). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Lumexa Imaging Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/lumexa-imaging/incident/LUM1779135941
- Lumexa Imaging CyberSecurity Rating page: https://www.rankiteo.com/company/lumexa-imaging
- Lumexa Imaging Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/lum1779135941-lumexa-imaging-breach-march-2026/
- Lumexa Imaging CyberSecurity Score History: https://www.rankiteo.com/company/lumexa-imaging/history
- Lumexa Imaging CyberSecurity Incident Source: https://www.claimdepot.com/data-breach/lumexa-imaging-2026
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf